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參數(shù)資料
| 型號： | REF102C |
| 英文描述： | Precision VOLTAGE REFERENCE |
| 中文描述： | 高精度電壓基準(zhǔn) |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 182K |
| 代理商： | REF102C |
REF102
7
FIGURE 4. REF102 Optional Output Voltage Fine Adjust.
Higher resolution, reduced range (typically
±
25mV).
APPLICATIONS INFORMATION
High accuracy, extremely low drift, outstanding stability,
and low cost make the REF102 an ideal choice for all
instrumentation and system reference applications. Figures 6
through 14 show a variety of useful application circuits.
FIGURE 6. –10V Reference Using a) Resistor or b) OPA27.
See AB-004 for more detail
1.4mA < (5V –I
L
) < 5.4mA
R
S
OPTIONAL NOISE REDUCTION
The high-frequency noise of the REF102 is dominated by
the zener diode noise. This noise can be greatly reduced by
connecting a capacitor between the Noise Reduction pin and
ground. The capacitor forms a low pass filter with R
6
(refer
to the figure on the first page of the data sheet) and attenu-
ates the high-frequency noise generated by the zener. Figure
5 shows the effect of a 1
μ
F noise reduction capacitor on the
high frequency noise of the REF102. R
6
is typically 7k
so
the filter has a –3dB frequency of about 22Hz. The result is
a reduction in noise from about 800
μ
Vp-p to under 200
μ
Vp-p. If further noise reduction is required, use the circuit in
Figure 14.
FIGURE 5. Effect of 1
μ
F Noise Reduction Capacitor on
Broadband Noise (f
–3dB
= 1MHz).
C
N
= 1
μ
F
NO C
N
6
b) Precision –10V Reference.
a) Resister Biased –10V Reference
R
S
I
L
4
REF102
2
–10V Out
V+ (1.4V to 26V)
2
6
4
10V
OPA27
R
1
2k
C
1000pF
–10V Out
–15V
REF102
V+ (1.4V to 26V)
REF102
V+
2
4
20k
Output
Voltage
Adjust
+10V
5
V
TRIM
6
V
OUT
R
S
1M
1μF
Tantalum
+
相關(guān)PDF資料 |
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| REF102M | Precision VOLTAGE REFERENCE |
| REF102R | Precision VOLTAGE REFERENCE |
| REF102S | Precision VOLTAGE REFERENCE |
| REF102AP | IC |
| REF1112 | 10ppm/C, 1UA, 1.25V Shunt Voltage Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| REF102CP | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| REF102CP | 制造商:Texas Instruments 功能描述:IC VOLT REFERENCE 10V |
| REF102CPG4 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| REF102CU | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| REF102CU/2K5 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Prec Vltg Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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